Infrared (IR) spectroscopy is a technique used for structure elucidation, detecting and quantifying elements or molecules in any sample which may be solid, liquid, or gas. IR spectroscopy exploits the fact that different elements and molecules absorb frequencies characteristic of their structure. The infrared spectrum is a graph of infrared light absorbance (or transmittance) on the vertical axis vs. frequency or wavelength on the horizontal axis and ... Read more